﻿extern int exam4_1();
extern int exam4_2();
extern int exam4_3();
extern int exam4_4();
extern int exam4_5();
extern int exam4_5_2();
extern int exam4_6_1();
extern int t();
extern int exam4_6_2();
extern int exam4_7();
extern int exam4_8();
extern int exam4_9();
extern int exam4_10();
extern int exam4_11();
extern int exam4_12();
extern int exam4_13();
extern int exam4_14();
extern int exam4_15_1();
extern int exam4_15_2();
extern int exam4_16();
extern int exam4_19();
extern int exam4_20();
extern int exam4_23();
extern int exam4_24();
extern int exam4_26();
extern int exam4_27();
extern int exam4_27_2();
extern int exam4_28();
extern int exam4_28_2();
extern int exam4_29();
extern int exam4_30();
extern int exam4_30_2();
extern int exam4_36();
extern int exam4_37();
extern int exam4_38();
extern int exam4_39();
extern int ex4_6_1();
int main()
{
	//exam4_12();
    //exam4_13();
	//exam4_14();
	//exam4_15_1();
	//exam4_1();
	//exam4_2();
	//exam4_3();
	//exam4_4();
	//exam4_5();
	//exam4_5_2();
	//exam4_6_1();
	//t();
	//exam4_6_2();
	//exam4_7();
	//exam4_8();
	//exam4_9();
	//exam4_10();
	//exam4_11();
	//exam4_15_2();
	//exam4_16();
	//exam4_19();
	//exam4_20();
	//exam4_23();
	//exam4_24();
	//exam4_26();
	//exam4_27();
	//exam4_27_2();
	//exam4_28();
	//exam4_28_2();
	//exam4_29();
	//exam4_30();
	//exam4_30_2();
	//exam4_36();
	//exam4_37();
	//xam4_38();
	//exam4_39();
	//ex4_6_1();
	 return 0;
}